Added login check (test it)

src/io/github/norbipeti/chat/server/IOHelper.java

@@ -10,7 +10,6 @@ import java.time.ZoneId;
 import java.time.ZonedDateTime;
 import java.time.format.DateTimeFormatter;
 import java.util.HashMap;
-import java.util.List;
 import java.util.UUID;
 
 import org.apache.commons.io.IOUtils;
@@ -93,4 +92,9 @@ public class IOHelper {
 		exchange.getResponseHeaders().add("Set-Cookie", "user_id=del; expires=" + expiretime);
 		exchange.getResponseHeaders().add("Set-Cookie", "session_id=del; expires=" + expiretime);
 	}
+
+	public static void Redirect(String url, HttpExchange exchange) throws IOException {
+		exchange.getResponseHeaders().add("Location", url);
+		IOHelper.SendResponse(303, "<a href=\"" + url + "\">If you can see this, click here to continue</a>", exchange);
+	}
 }

src/io/github/norbipeti/chat/server/page/LoginPage.java

@@ -1,16 +1,43 @@
 package io.github.norbipeti.chat.server.page;
 
 import java.io.IOException;
+import java.util.HashMap;
+
+import org.mindrot.jbcrypt.BCrypt;
 
 import com.sun.net.httpserver.HttpExchange;
 
 import io.github.norbipeti.chat.server.IOHelper;
+import io.github.norbipeti.chat.server.db.DataProvider;
+import io.github.norbipeti.chat.server.db.domain.User;
 
 public class LoginPage extends Page {
 
 	@Override
 	public void handlePage(HttpExchange exchange) throws IOException {
-		IOHelper.SendPage(200, this, exchange);
+		HashMap<String, String> post = IOHelper.GetPOST(exchange);
+		if (post.size() == 0 || !post.containsKey("email") || !post.containsKey("pass")) {
+			IOHelper.SendPage(200, this, exchange);
+			return;
+		}
+		try (DataProvider provider = new DataProvider()) {
+			User loginuser = null;
+			for (User user : provider.getUsers()) {
+				if (user.getEmail().equals(post.get("email"))) {
+					loginuser = user;
+					break;
+				}
+			}
+			if (loginuser == null || !BCrypt.checkpw(post.get("pass"), loginuser.getPassword())) {
+				IOHelper.SendModifiedPage(200, this, "<errormsg />", "<p>The E-mail or password is incorrect</p>",
+						exchange);
+				return;
+			}
+			IOHelper.LoginUser(exchange, loginuser);
+			IOHelper.Redirect("/", exchange);
+		} catch (Exception e) {
+			throw e;
+		}
 	}
 
 	@Override

src/io/github/norbipeti/chat/server/page/RegisterPage.java

@@ -38,11 +38,10 @@ public class RegisterPage extends Page {
 				user.setName(post.get("name"));
 				user.setEmail(post.get("email"));
 				user.setSalt(BCrypt.gensalt()); // http://www.mindrot.org/projects/jBCrypt/
-				user.setPassword(BCrypt.hashpw(post.get("password"), user.getSalt()));
+				user.setPassword(BCrypt.hashpw(post.get("pass"), user.getSalt()));
 				provider.addUser(user);
 				IOHelper.LoginUser(exchange, user);
-				exchange.getResponseHeaders().add("Location", "/");
-				IOHelper.SendResponse(303, "<a href=\"/\">If you can see this, click here to continue</a>", exchange);
+				IOHelper.Redirect("/", exchange);
 			}
 			return; // TODO: Only show tag when needed
 		}